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R5 won't shift into gear

Started by Greaser Greg, November 26, 2019, 09:59:37 PM

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Greaser Greg

Tried all the basic stuff. Is there anything that can happen to cause this when the cam stopper is removed, for instance if someone thought it was the drain plug and something slid over on the shift cam while stopper was out?
Right side engine cover is off, shift linkage and cam both move, but won't  engage gears.
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

Greaser Greg

 Bent shift shaft indicates traumatic forces resulting in loss of function due to deformation of critical mechanism.
Thanks to Jspooner for the shaft and some luck scoring the other two parts for $.99 +shipping!
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

quocle603

Great community here to helping others out.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

Greaser Greg

Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

Greaser Greg

I'm thinking this thing got scored when the metal from the clutch screws grinding on the cover settled. It doesn't slide when under even the slightest side load. Trans works fine without it, not fine with.
Anybody have one, or suggestion to repair? The outer threaded section was all f'ed up on the inside and at the opening, so I filed and sanded it. Moves easier but now it's kinda sloppy.
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

m in sc

well if that wont work that will definitely keep it from shifting.

heres one from an rd, it will work & this gives you an idea of whats out there. something def looks 'off' with yours

https://www.ebay.com/itm/YAMAHA-RD350-RD-350-ENGINE-GEARSHIFT-GEAR-SHIFT-DRUM-NEUTRAL-DETENT-BOLT-/382386111420

Greaser Greg

Make my day why dontcha! Wonders never cease! Happy as a tick on a hound!  Looks like a much improved design.
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

SUPERTUNE

Quote from: Greaser Greg on December 07, 2019, 10:28:06 PM
I'm thinking this thing got scored when the metal from the clutch screws grinding on the cover settled. It doesn't slide when under even the slightest side load. Trans works fine without it, not fine with.
Anybody have one, or suggestion to repair? The outer threaded section was all f'ed up on the inside and at the opening, so I filed and sanded it. Moves easier but now it's kinda sloppy.

What is that?
The one Mark posted is correct.

Never seen one like that...I don't think it's for R5/RD!

I have spares if you need one free + ship (oh... I think you just bought it)

It will need a proper thickness fiber gasket washer too!
Chuck
RD machine work, boring, porting, cranks and engine building.


Chuck 'SUPERTUNE' Quenzler III
Team Scream Racing LLC
1920 Sherwood St. STE A
Clearwater, FL. 33765
cqsupertune@tampabay.rr.com

Greaser Greg

#8
That's the piece that came on the motor; same as on the other bike I have. What's the proper thickness for the washer?
Guess I shoulda made a lower offer! Haha :vroom: Whatevs, totally worth it! I bought the other one listed on eBay also, just in cases. "A fool and his money are soon part-ing."
That style does look like a much better design. I'll swap out Rusty's when I do a trans oil change.
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit

m in sc

#9
the old r5 ones ARE like that, they changed the design (for a good reason). the rd ones are very robust.

Greaser Greg

#10
Dry run for shift adjustment with new parts. It works! :metal:
Every day above ground is a good one.
'71 R5B "Rusty"  '71 R5B "Decaf"   '99 KZ 250
'97 XL1200S "The Vibrator"   '08 XL1200N  "Greenie" (totalled)
'78 CB750F "The Skunk"   '74 CB550 "Blackie"    '78 Honda Hobbit